Earth's thin, rocky, outer layer on which we live is called the

a. seismosphere.
b. geosphere.
c. asthenosphere.
d. crust.


d

Physics & Space Science

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Explain individual galaxies or clusters of galaxies do not expand in size despite the overall expansion of the universe implied by Hubble's Law

What will be an ideal response?

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The energy of an electron in the p-level of an atom is changed in the presence of a magnetic field of magnitude 4.6 T

What is the difference between the largest and smallest possible energies? (Bohr magneton = ?B = 9.27 × 10-24 J/T)

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An electron has a speed of 0.643c. Through what potential difference would the electron need to be accelerated (starting from rest) in order to reach this speed? (c = 3.00 × 108 m/s, e = 1.60 × 10-19 C, mel = 9.11 × 10-31 kg)

A) 160 kV B) 130 kV C) 180 kV D) 200 kV

Physics & Space Science

Coronae on Venus are believed to be

a. impact craters. b. caused by rising convection currents in the interior of Venus. c. the result of plate tectonics. d. located only in the polar regions of Venus. e. much older than the highlands such as Ishtar Terra.

Physics & Space Science